ES288078A1 - Step valve device applicable to air brakes on railway trains (Machine-translation by Google Translate, not legally binding) - Google Patents

Step valve device applicable to air brakes on railway trains (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES288078A1
ES288078A1 ES288078A ES288078A ES288078A1 ES 288078 A1 ES288078 A1 ES 288078A1 ES 288078 A ES288078 A ES 288078A ES 288078 A ES288078 A ES 288078A ES 288078 A1 ES288078 A1 ES 288078A1
Authority
ES
Spain
Prior art keywords
control chamber
pressure
chamber
compensating
movement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES288078A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Westinghouse Air Brake Co
Original Assignee
Westinghouse Air Brake Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Westinghouse Air Brake Co filed Critical Westinghouse Air Brake Co
Publication of ES288078A1 publication Critical patent/ES288078A1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
    • B60T15/02—Application and release valves
    • B60T15/18—Triple or other relay valves which allow step-wise application or release and which are actuated by brake-pipe pressure variation to connect brake cylinders or equivalent to compressed air or vacuum source or atmosphere
    • B60T15/24—Triple or other relay valves which allow step-wise application or release and which are actuated by brake-pipe pressure variation to connect brake cylinders or equivalent to compressed air or vacuum source or atmosphere controlled by three fluid pressures
    • B60T15/30—Triple or other relay valves which allow step-wise application or release and which are actuated by brake-pipe pressure variation to connect brake cylinders or equivalent to compressed air or vacuum source or atmosphere controlled by three fluid pressures with a quick braking action
    • B60T15/302—Railway control or brake valves with evacuation of air to a reservoir, to the atmosphere or to the brake cylinder
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7781—With separate connected fluid reactor surface
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7781—With separate connected fluid reactor surface
    • Y10T137/7832—Plural valves biased closed

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Abstract

Passage valve device, applicable to air brakes in railway trains, characterized in that it comprises: (a) a box having a control chamber with a pressure controlled conduit for supplying pressurized fluid thereto for charging said control chamber, (b) said chamber having a compensating box, (c) throttling means connecting said chambers for charging said compensating chamber with compressed fluid from said control chamber, (d) movable stop means subjected to opposing pressure from said control chamber and said compensating chamber for movement in any of the opposite directions. (e) a normally seated valve, operatively connected to said movable stop means and rising from the seat in response to the movement of said movable stop means upon a reduction in pressure in said control chamber occurring at a rate above a certain degree to effect a rapid evacuation to the atmosphere of fluid under pressure from said control chamber to said conduit with controlled pressure, and (f) valve means comprising cooperating members on said movable stop and said housing for opening a restricted passage between said compensating chamber and said control chamber during the movement of said movable abutment means in response to the concurrence of a pressure reduction in said control chamber in a regime up to said determined degree and to close said restricted passage, when moving said abutment moving means in a direction opposite said last mentioned movement, in response to a predominant pressure in said control chamber above of the pressure in said compensating chamber. (Machine-translation by Google Translate, not legally binding)
ES288078A 1962-08-16 1963-05-16 Step valve device applicable to air brakes on railway trains (Machine-translation by Google Translate, not legally binding) Expired ES288078A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US217473A US3165115A (en) 1962-08-16 1962-08-16 Vent valve device

Publications (1)

Publication Number Publication Date
ES288078A1 true ES288078A1 (en) 1963-12-16

Family

ID=22811229

Family Applications (1)

Application Number Title Priority Date Filing Date
ES288078A Expired ES288078A1 (en) 1962-08-16 1963-05-16 Step valve device applicable to air brakes on railway trains (Machine-translation by Google Translate, not legally binding)

Country Status (2)

Country Link
US (1) US3165115A (en)
ES (1) ES288078A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3275027A (en) * 1964-06-19 1966-09-27 Westinghouse Air Brake Co Regulating valve device
US3570529A (en) * 1969-10-13 1971-03-16 Gen Signal Corp Emergency vent valve
US4037880A (en) * 1976-06-28 1977-07-26 Westinghouse Air Brake Company Emergency brake valve device for propogating an emergency brake application
US4026609A (en) * 1976-08-26 1977-05-31 Westinghouse Air Brake Company Pressure reduction and pressure reduction rate sensitive emergency vent valve
US4938248A (en) * 1987-05-04 1990-07-03 Irro-Controls Group Moisture and pressure sensitive fluid control circuit
US4922945A (en) * 1987-05-04 1990-05-08 Irro-Controls Group Self-servicing hydraulic tensiometer with electrical switching and response capabilities
US4974911A (en) * 1989-07-11 1990-12-04 American Standard Inc. Vent valve device
US5096266A (en) * 1991-02-08 1992-03-17 Westinghouse Air Brake Company Dual-response vent valve device
US6752217B2 (en) 2000-03-16 2004-06-22 Victaulic Company Of America Dry accelerator for sprinkler system
US6708771B2 (en) 2000-03-27 2004-03-23 Victaulic Company Of America Low pressure electro-pneumatic and gate actuator
US6536533B2 (en) 2000-03-27 2003-03-25 Victaulic Company Of America Low pressure actuator for dry sprinkler system
US6666277B2 (en) 2000-03-27 2003-12-23 Victaulic Company Of America Low pressure pneumatic and gate actuator
US20090229932A1 (en) * 2008-03-11 2009-09-17 New York Air Brake Brake pipe vent valve for locomotive brake system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2260485A (en) * 1941-02-24 1941-10-28 New York Air Brake Co Air brake
US2962039A (en) * 1954-05-27 1960-11-29 Shand Stanley Grapes Fluid controlling valves
US2861587A (en) * 1955-11-25 1958-11-25 Westinghouse Air Brake Co Vent valve device

Also Published As

Publication number Publication date
US3165115A (en) 1965-01-12

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